System of control for the distributing gears of heat engines



April 15, 1924; J. BIGNAN SYSTEM OF CONTROL FOR THE DISTRIBUTING GEARS OF HEAT ENGINES 3 Sheats-Sheatl i ed, mac, 12. 1922 April 15 1924.

J. BIGNAN' SYSTEM OF CONTROL FOR THE DISTRIBUTING GEARS OF HEAT ENGINES File 6 12. 1922 3 Sheets-Sheet 3 April 15 1924. 1,490,656

' J. BIGNAN SYSTEM OF CONTROL FOR THE DISTRIBUTING GEARS OF HEAT ENGINES Filed Dec. 12. 1922 3 Sheets-Sheet 3 1 M ,-i lance, Live inventor CGrLJLlll new anu Patented Apr. 315, i924.

To all who-m it may concern:

Be it known that l, JAooUns Brenner, a citizen of the French Republic, re 'ding at l5 Rue de Normandie, Courbevoie, Seine .e ml Improvements in a System oi Control for the Distributing Gears of Heat Engines, oi? which the following is a specification.

The present invention relates to a system of control for the distributing gear of heat engines; this system finds its application for the control oi. the valves, jackets, slide valves or any other system of distribution for internal combustion engines or steam engines and can be more particularly used for the control of the distributing gear of two adjacent cylindersoi a multi-cylinder power unit.

The system forming the subject matter of the invention is characterized in that tne reciprocating movement of each distribuo ing member is controlled by a cam, the axis oil? rotation of which is parallel to the 2135 s of the cylinder and carrying a projecting rolling track clamped between two rollers integral with the distributing member through the medium or not of resilient ties.

The accompanying drawing illustrates, by way of example, various forms of carrying out the invention, applied to the control of the distributing members of two adjacent cylinders of a multi-cylinder power unit.

Fig. 1 shows in elevation, partly in section according to A-A., the control device.

Fig. 2 is a. plan view of Fig. 1.

Fig. 3 is a sectional elevation according to l3-l3 of a constructional modification.

Fig. i is a plan view of Fig. 3.

Fig. 5 is a sectional elevation of a sec ond constructional modification.

Fig. 6 is a plan View corresponding to Fig. 5.

F or the clearness of the description, the construction and operation of the control device of the distributing members 0 a single cylinder will first be explained. Then the combination of two of these de vices will be described in the particular cases illustrated.

Referring to F 1, the cam 1 can rotate about an axis parallel to the axis 01"" the cylinder 2 and comprises a projecting rolling 12, 1322. Serial l lo. 606,505.

track 3 on which run, on either rollers 4 and 4.

The rollers 4 and t can rotate about axes integral with the roller-carrier made in two parts 5 and 5. The part 5 slides within the part 5 and a spring 6 clamped between this latter and a nut 7 screwed on an extension of 5, constantly tends to together the two rollers i and l,'so that they clamp between them the projecting rolling track 3; this arrangement is .p-ted to avoid any noise and to take"up the play. lf'he part 5 is moreover guided by rod 14.

side, the

("in the other hand, the part 5 can move between two rings 8 and 8, screwed and pinned on the rod 9 of the valve 10, whilst a spring 11 tends to constantly hold the part 5 in contact with the ring 8. Finally, the guiding of the roller-carrier is completed by the rod 12 on which slid the parts 5 and 5.

The operation is then as follows:

When during its rotation the cam 1 determines the downward movement of the roller 4: and consequently of the part 5, the part 5 is actuated in the same direction as well as the roller 4-, by the nut-ring 7 and the spring 6. The part 5 then comes in contact with the ring 8, this determining the actuation of the rod 9 and the open ing of the valve 10.

1 1 11611 the earn 1 lifts the roller l'and consequently the part 5, the spring '6 acting on the nut 7 forces the roller 4 to con stantly remain in contact with the rolling track 3; at the same time, the spring 11 and the ring 8 permit the actuation of the rod and the application of the" valve upon its seat; the movement of the part 5 continuing, this latter compresses the spring 11, this having the effect of the very complete closing of the valve 10.

It is obvious that a similar roller carrier 5 is provided for th second valve of the cylinder, also controlled by the cam 1, the rolling track and the speed of rotation of which are determined in consequence.

it is also'possible to control by two siinilar cams, which are coaxial but angularly displaced in a suitable manner, the distributing members of two consecutive cylinders of a multi-cylinder power unit. In the example shown in Fig. 1, both cams 1 and l rotate in reverse direction at the same speed and are displaced 180 degrees relatively to each other. The device "for transmitting the movements to the cams can be or" any type whatever; particularly, each of the cams 1 and 1 can be integral with a pinion 13 and 13 gearing with a bevel pinion 14, the points of engagement of each of the pinions 13 and 13 being diametrically opposite to each other.

l Vith the device illustrated in Figs. 1 and 2, it is possible to choose for the valves the best arrangement in which these valves are not subjected to any stress prejudicious to their proper operation. But it is also possible to arrange the rollercarriers directly on the valve rod 9, so as to do away with the guide rod (Figs. 3 and l).

In this example, the roller-carrier 5 slides on the rod 9 of the valve 10 and on the roller-carrier 5 slides the roller-carrier 5.

The parts 5 nd 5 are moreover guided by the rod 12.

The nut 7, screwed on the part 5 serves as a bearing, on the one hand, for the spring 6 which bears at the other end of the part 5 and, on the other hand, for the spring 11 which bears at the other end on the ring 8 pinned on to the rod 9.

It is easy to see that this modification constructional arrangements does not necessitate any modification in the operation described for the first form of construction. its stated, the system of control forming the subject-matter of the invention applies to the control of any distributing members. By way of example, Figs. 5 and 6 show the application oi this system of control to a distribution by means of slide valves; this form of construction is very similar as far as the construction and operation are concerned to that illustrated in Figs. 1 and 2 but, as the spring 11 permitting the application of the valve 10 upon its seat does not present any longer any interest, the rings 8 and 8 directly clamp between them the extension of the roller-carrier 5 without any resilient intermediary.

The control device forming the subjectmatter of the invention may give rise to other numerous modifications which, as well as the forms of construction given above, constitute only particular examples which do not depart from the scope of the invention.

li hat I claim as my invention and desire to secure by Letters Patent is:

1. In a system of control for the distributing members of heat engines, a rod parallel to the axis 01 the cylinder, acam capable or" rotating on this rod, a side rolling track out on this cam, rollers arranged on either side of this rolling track, axes supporting these rollers, a sleeve supporting the axis or the upper roller, a sleeve supporting the axis of the lower roller, means for guiding these sleeves, means tor connecting the said sleeves to the distributing member and means tor rotating the cam.

2. In a system of control for the distributing members of heat engines, a rod parallel to the axis of the cylinder, a cam capable of rotating on this rod, a side rolling tracl: cut on this cam, rollers arranged on either side of this rolling track, axes supporting these rollers, a sleeve supporting the axis of the upper roller, a sleeve supporting the axis of the lower roller, a guide rod passing axially through both sleeves, means for connecting the said sleeves to the distributing member and means for rotating the cum.

3. in a system of control for the distributing members of heat engines, a rod parallel to the axis of the cylinder, a cam capable of rotating on this rod, a side rolling track cut on this cam, rollers arranged on either side of this'rolling track, axes supporting these rollers, a sleeve supporting the axis of the upper roller, a sleeve supporting the axis of the lower roller, a guide rod passing axially through both sleeves, a rod integral with the distributing member, means for connecting one of the sleeves to this rod, means for connecting the two sleeves together and means for rotating the cam.

4. In a system or" control for the distributing members of heat engines, a rod parallel to the axis "of the cylinder, a cam capable of rotating on this rod, a side rolling track out on this cam, rollers arranged on either side of this rolling track, axes supporting these rollers, a sleeve supporting the axis of the upper roller, a sleeve supporting the axis of the lower roller, a guide rod passing axially through both sleeves, a rod integral with the distributing member, a ring secured to the upper part of this red,

' a resilient member acting between this ring and the lower sleeve for moving them apart, a resilient member acting on the upper sleeve and the lower sleeve for moving them together, an abutment secured to the lower part of the rod and means for rotating the cam.

In testimony whereof I have signed my name to this specification.

JACQUES BIGNAN. Witnesses l-lnrznr MoRIN, A. Moruor. 

